Whats more important? Speaker or the Amp

I would agree with the hen/egg paradigm. HOWEVER, atmasphere gives a nice and simple overview of the matter.

In this light, a subjective solution to the conundrum is simple: single out which one of these two components is a favourite (as in, I love these spkrs! or, I love my amps).

The other component being incidental, we can choose whichever will perform with our "loved" one.

often the most powerful monoblocks are sitting on the floor where they are less likely to overdrive the speakers

Which, in turn, explains why some people have their giga amps in the basement: use gravity to restrict --in a natural way -- the energy flow into the room!